sohbeter



PATENTED MAR. 10,1868.

G. SGHRBYER.

FURNAGB.

2 SHEETS-anim 1.

Jy. J.

PATENTED MAR. 1,0, 1.868;

FURNAGB.

fli4l!!! A j UNITED STATES PATENT OFFICE.

GOTTLIE-B se En EYE It, 0 F c o L vII MB Us, o H10.

Leners Patent Navasoo, dated Mme-7i 10,1868.

Flite Scintille refinera in tins: zitrt frn-utma mating-grd nf ilu time.

To ALL wIIoM IT MAY ooNcEEN:

Be itknown that I, Go'rrmnn SGHREYER, of Columbus, in the county of Franklin, and Stateof Ohio, have invented-anew and improved Smoke-Consuming Furnace; and I do hereby declare that the following is a full, I clear, and exact descriptionthereof, vreference being had 'to the accompanying drawingsmuking a part of this specification, in niliich-- Y Figure 1 is a. longitudinal section, taken in a' vertical plane' through a cooking-stove, having my invention applied to it.

Figure 2 is a perspective view of the air-pipes.

Figure 3, sheet 2, is a'modifcation of figs. land 2.

Similar letters of reference indicate corresponding parts in the Vtwo gures.-

This inventioarelates to a novel improvement on the construction of fire-chambers for stoves, steam-boilers, and otherpurposes, whereby the highly-heated gases and smoke are causedto `pass between two inilowing currents of air, which airis introduced through conduits arranged at the upper termination of the fire-back or bridge-'wall of the fire-chamber, in such manner as to form a contracted throat and outlet for the products of imperfect combustion, therebyeompelling the latter to thoroughly mingle with theair flowing from the conduits, and causing a very perfect combustion of. the iniiammatory-products, hs will be hereinafter 'de-scribed.

To enable others s killed in the art 'to understand my invention, I will describe its construction and I operation. t

In the accompanying drawings I have represented my invention applied to a common form of stove, but I do no not confine' myself to stoves, as the invention is applicable to allkinds of furnaces.

A represents there-chamher, upon the grate B of which the re is made, and C. represents the back wall of the fire-chamber, which may be inclined, as shown, and which is constructed with a horizontal transverse air-chamber, a, at its upper end, over which the heated products of combustion 'pass o n their way to theiiue D.

This air-chamber-or conduit is made ofthe triangular form shown in the drawings, for the puipose of directing the ascending products ofcoinbustion backward, and thus retarding their escape 'into ue D. i

The upper anglefof the chamber Qr conduit a has a narrow opening extendingits entire length, from which nir escapes in athin stream. If desirable, registers may be applied .to the extremitiesof the cond-uit a, for the purpose of regulating tho iniiux of air into this conduit. 4

E isla partition, which is dropped from the'top plateof the stove, so as to extend down nearly to 4the angle of the conduite, through'which the inlet-opening is made, und leaves `a. narrow opcning,"b, through which the products of combustion pass to the iue D. Below this opening b is allorizontal transverse conduit, G, which receives air at both ends,and dischrgesthis a'ir through-small openings, c, in adirection which isl toward the opening `for the-escape. of air from the conduit a, as indicated by the arrow in fig. 1. This conduit G is so arranged that the products of combustion rising from the tire-chamber have to pass around it, and between it .and the front wall oi' the air-conduit d, thereby heating` the walls ofthe two conduits, and causing the .air'

which en ters them to become more or less heated before escaping and mingl-ingwith the-smoke'und gases; i

It will'be seen lfrom the above description that I have two streamsof air crossing n contracted throat in opposite directions, through which the highly-heated products of combustion are compelled to pass before escaping through the opcningbfinto the iiue D. This has th'e eiect `of thoroughly mixing the products of combustion with air, and consequently of supplying oxygen to the gusesand smoke, which will cause n very perfect combustion thereof. i In fig.. 8, sheet 2, I have shown a modification of the arrangement shown'in figs. 1 and 2. In this figure it will besee'n thatI dispense 'with the cylindrical air-conduitG, and form the upper chamber G upon the lowerl edge of the'divisional plate E. i t

It will be seen that in this instance, as well as in that above described, I have two air-inlet chambers.v forms 'ing a contracted throat, through which the products of combustion have to pass, with tvro streams of air escap= ing and crossing such throat in o'p'posite directions. In some .cases the pipe .G will be used, but for stoves the arrangement shown in iig. 3 may be preferable, on account of 'ccmpactnessi I Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The contracted thront'b, which is formed by two independent air-receiving conduits or chambers G a, from rrhich twoV independent streams of air escape, and meet or cross one anotherin said throat, substantinlly as and for the purpose described. 5

2. The construction afnd relative arrangement of the independent air-receiving air-conduits a G, und escapeaperture b in the fire-chamber, in tbe manner and for the purposes described.

GOTTLIEB SCHREYER.

Witnesses:

GEO. F. OHABRA, Wu. JAMIsoN. 

